Cylinder-lock.



No. 659,483. Patented 0ct.9, |900. H. S. LUCKWOD.

YUNJERv LUCK. (Application meal Apr. 24, 1900.)

UNTTED STATES PATENT EFicE.

HENRY S. LOOKWOOD, OF SOUTH NORWALK, CONNECTICUT.

CYLINDER-LOCK.

SPECIFICATION forming; part f Letters Patent N0. 659,483. dated October 9, 1900.

Application filed April 24, 1900.

To all whom, it may concern:

Beit known that I, HENRY S. LocKWooD, a citizen of the United States, residing at South Norwalk, county of Fairfield, State of Connecticut, have invented a new and useful Cylinder-Lock, of which the following is a specitication.

My invention relates to the class of locks commonly known as cylinder-locks, and has for its object to provide a mode of attaching the locking-cylinders,so called, or tumbler cases to the lock-cases that will not only reduce the cost of construction, but will enable the tumbler-case to be fitted closely to the door in all cases no matter how much the thickness of doors may vary, will render it impossible for the tumbler-case to be turned out, and, furthermore, will accomplish these results without the use of lockinggrooves, either longitudinal or circumferential.

`With these endsin View myinvention consists in the novel construction which l will now describe, referring to the accompanying drawings, forming part of this specification, and using reference characters to designate the several parts.

Figure 1 is an elevation, partly broken away, showing my novel lock in place in a door; Fig. 2, a transverse section through the edge of a door and through the lock-case and tumbler-case of a lock, the locking mechanism being omitted, as it forms no portion of my present invention; Fig. 3, a view of the upper portion of one of the side plates of a lock-case detached; Fig. 4, a sectional view of the lock-case on the line 4 4 in Fig. 2, the tumbler-case and escutcheon-ring being removed; and Fig. 5 is a rear elevation of the tumbler-case detached.

A denotes a door; B, a lock-case having the usual face-plate and removable side plate 11; C, the tumblercase, having the usual ange 12; D, the hub, and E an escutcheon-ring.

The gist of my invention lies in making the tumbler-case and the corresponding openings in the lock-case which receive it of such shape relatively to each otherthat the tumbler-case when in engagement with the opening cannot be rotated and in providing the tumbler-case on opposite sides with inclines, one of which is adapted to be engaged by a retaining-slide Serial No. 14,108. CNO model.:

to lock the tumbler-case against withdrawal. It will of course be apparent that there is practically no li mit to the variations that may be made in the shape of the tumbler-case and still the same result be obtained. For example, the tum ble r-case may be made triangular, hexagonal, or of any polygonal form in crosssection, or it 'may be provided with one or more sides, not necessarily flat, or with one or more projections or depressions, the opening in the lock-case of course corresponding with the configuration of the tumbler-case in cross-section.

I can best define the scope of my invention so far as relates to the shape of the tumblercase by saying that it may be of any form other than circular in cross-section. In the present instance l have shown the tumblercase as provided with two parallel sides, which I have indicated by 13, and with inclines 14,dia1netrically opposite to cach other, (so as to make the tumbler-case reversible,)

vsaid inclines being highest at the inner end of the tumbler-case and running out in the sides thereof. 15 denotes the tumbler-case openings in the lock-case, which, as already stated, correspond in outline with the crosssection of the tumbler-case to such an extent as to hold the tumbler-case against rotary movement. It should be understood,'how ever, that correspondence in outline of the entire circumference of the openings with the tumbler-case is unimportant.

16 and 17 denote slots leading from openings 15, which in assembling receive the inclines 14 upon the tumbler-case. These slots need not vcorrespond in shape with the inclines, it being simply necessary that the slots be large enough to receive the inclines.

18 denotes a retaining-slide, (bifurcated to make the tumbler-case reversible,) the forward ends of which are preferably, though not necessarily, beveled, as at 19, to correspond with the inclines upon-the tumblercase. Suitable Ways are of course provided in the side plates of the case to hold the retaining-slide in place. In the present instance l have shown slot-s 17 as elongated in the direction of the face-plate and undercut, as at 20, and have shown the inner ends of the arms of the retaining-slide as shaped to correspond therewith, as will be clearly un- Ico derstood from Fig. 4 in connection with the other figures of the drawings. The retainingslide may be operated to grip or release the tumbler-case in any ordinary or preferred manner. In the present instance I have shown the retaining-slide as operated by means of an adjusting-screw 21, which passes through a lug 22,projecting from the case and whose head lies in an opening 23 in the faceplate and is provided with an operating-slot 24. The portion of the adj usting-screw which passes through lug 22 is provided with a groove, (see dotted lines, Figs. l and 2,) which is engaged by a pin 25, passing through the lug. This pin holds the adjusting-screw against longitudinal movement, so that the retaining-slide will be moved in or out when the adj usting-screw is rotated.

In use in order to provide for great variation in the thickness of doors, escutcheonrings of different heights may be provided. The lock-case is mortised into the door in the usual manner and a hole bored in one side for the insertion of the tumbler-case. The operation of attaching the tumbler-case to the lock-case is by my novel invention red nced to absolute simplicity and accuracy. The operator passes the tumbler-case through an escutcheon-ring, inserts the inner end of the tumbler-ease into opening 15 in the lock-case, inclines 14 being in engagement with slots 16 and 17, and pushes the tumbler-case in until the escutcheon-ring lies against the face of the door, as clearly shown in Fig. 2. The retaining-slide is then m'oved inward until the forward end thereof engages the incline 14 on the tumbler-case. This engagement of the retaining-slide with the incline tends to of, of a lock-case having an opening corresponding in shape with the tumbler-case so as to prevent the latter from turning and a retaining-slide adapted to engage the incline to lock the tumbler-case against Withdrawal.

2. In a lock the combination with a tumbler-case of other form than circular in crosssection and having an incline highest at the inner end and running out in the side thereof, of a lock-case having an opening with a slot leading therefrom which receives the incline and a retaining-slide adapted to engage vthe incline, substantially as and for the purposes set forth.

3. The lock-case B having tumbler-case opening 15 and slots 16 and 17 leading therefrom, said slot 17 being undercut as at 20, substantially as shown, for the purpose specified.

In testimony whereof I afx my signature in presence of two witnesses.

HENRY S. LOCKWOOD.

Witnesses:

S. E. BODWELL, L. D. AINSWORTH. 

